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Performance (Supercharger) without busting warranty

17930 Views 64 Replies 24 Participants Last post by  RubberBurner
I want to start working on slowly upgrading my Stingray (2017) and to appease my wife I can't do anything that will mess with the warranty.

Besides the obvious with no cutting or welding, it seems like what will or won't affect warranty is a very gray area. I was asking the dealership i bought it from and they were no help.

I'm going to start with a supercharger (everywhere I read it's the best bang for buck). Are there any certain superchargers (or typical upgrades) that will void my warranty?

Any recommendations with brand/model? I'm leaning towards toward a Magnuson with the little research I've done..
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Pretty much out of luck. Do some research on threads here and you will see the cold hard reality of modifying these cars. Very complicated indeed and this topic has been covered in painful detail.

That being said I wish you well in your quest. Mine is highly modified and enjoy every minute behind the wheel...
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Perhaps, if it were done by Lingenfelter, it might retain the warranty. Of course that's not a low cost approach, but it may be the best bet. I'm sure they can at least answer the warranty question and provide a cost quote.
Perhaps, if it were done by Lingenfelter, it might retain the warranty. Of course that's not a low cost approach, but it may be the best bet. I'm sure they can at least answer the warranty question and provide a cost quote.
Only going to post once on this subject for the OP.

Lot of well meaning people such as German however, the Warranty Is GM Period No Discussions and it is very clear I suggest you read it word for word do not be mislead and yes I am intimate with the MM Act. No One unless they are providing you a supplemental warranty such as some modification specialists do 3rd party will cover anything they do to the car. GM has Cracked Down on this car specifically regarding modifications esp the ECM and PCM. Do the research!
Edelbrock EForce comes with a power train warranty and looks great. They stand behind the unit as I had a fuel line issue that they paid for no questions asked.
Thanks All! Definitely glad I asked.. The dealership said bolt-on superchargers "should" be okay... I definitely didn't get the warm and fuzzy that it'd be covered.

Appreciate everyone's assistance and guess the best place to start is the actual GM site.

Happy Mother's Day to any moms/grandmas/etc...
There are several manufactures of SC that have a relationship with GM, going with them would "should not" impact your power train warranty! However those are very expensive compared to others that don't, like Procharger, A&A, Eastcoast.
Before you do anything with the power train, you have to accept the possibility you just voided that part of the warranty. With that said, IMHO you can SC your car and as long as you don't go over board, the engine should handle the increase without a problem. Is it 100%, NO, but that is the risk you take.
I have a SC on mine, and I love it!
It is an absolute thrill when you step on that accelerator and hear the SC whine, blow off valve kicking in and those headers singing sweet sound of HP!
Good luck with ur mods....whatever you do!
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Thanks All! Definitely glad I asked.. The dealership said bolt-on superchargers "should" be okay... I definitely didn't get the warm and fuzzy that it'd be covered.

Appreciate everyone's assistance and guess the best place to start is the actual GM site.

Happy Mother's Day to any moms/grandmas/etc...
Think of it this way.

Various parts of the engine and the power train are designed to stand up to certain amounts of forces.

If your engine starts putting out more torque, then those parts will start getting twisted harder than they are guaranteed to be able to withstand.

Why would GM cover a warranty claim where the customer had done something to the engine which would make the drive train undergo more stress than it is supposed to see?

The answer is: GM WILL NOT ALLOW A DRIVE TRAIN WARRANTY CLAIM IF YOU HAVE MADE A CHANGE WHICH WILL GIVE A SIGNIFICANT INCREASE TO YOUR ENGINE OUTPUT OVER WHAT THEY SPECIFY.

So, what you are left with is either don't make any significant changes such as adding a supercharger, or convince your wife it is okay to void your drive train warranty, or go with some third party company who will offer their own warranty after they make changes and GM's drive train warranty is voided. If you go the last route, make sure the third party company has been around for a long time, has a great reputation, and you believe they will live up to their word and not go out of business for as long as you own the car.
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There are several manufactures of SC that have a relationship with GM, going with them would "should not" impact your power train warranty! However those are very expensive compared to others that don't, like Procharger, A&A, Eastcoast.
Before you do anything with the power train, you have to accept the possibility you just voided that part of the warranty. With that said, IMHO you can SC your car and as long as you don't go over board, the engine should handle the increase without a problem. Is it 100%, NO, but that is the risk you take.
I have a SC on mine, and I love it!
It is an absolute thrill when you step on that accelerator and hear the SC whine, blow off valve kicking in and those headers singing sweet sound of HP!
Good luck with ur mods....whatever you do!
Just to be clear..... The GM Warranty is the GM Warranty. There are no "relationships" with 3rd parties. If you are falsely led to believe there is read the warranty word for word or better yet contact GM and request their position in writing. I have done this--had issues previously. Not going into anymore detail however, if you go through GM it will be completely clear and in writing that GM has no "relationship" with a tuner company period. Their response is the warranty you received at the time you purchased the vehicle and agreed to by the way expresses the obligation of GM in this matter.
Let me just say I respect all of these opinions. At one point I was seriously considering adding a supercharger but ultimately decided the cost, warranty issues and potential mechanical problems are not worth the performance gains, especially for my driving needs.

I like to put it in this perspective: In 1970 (when I was 18) if I owned a car which performed like my Stingray, I'd be king of the muscle car mountain. :tranquillity:
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Think of it this way.

Various parts of the engine and the power train are designed to stand up to certain amounts of forces.

If your engine starts putting out more torque, then those parts will start getting twisted harder than they are guaranteed to be able to withstand.

Why would GM cover a warranty claim where the customer had done something to the engine which would make the drive train undergo more stress than it is supposed to see?

The answer is: GM WILL NOT ALLOW A DRIVE TRAIN WARRANTY CLAIM IF YOU HAVE MADE A CHANGE WHICH WILL GIVE A SIGNIFICANT INCREASE TO YOUR ENGINE OUTPUT OVER WHAT THEY SPECIFY.

So, what you are left with is either don't make any significant changes such as adding a supercharger, or convince your wife it is okay to void your drive train warranty, or go with some third party company who will offer their own warranty after they make changes and GM's drive train warranty is voided. If you go the last route, make sure the third party company has been around for a long time, has a great reputation, and you believe they will live up to their word and not go out of business for as long as you own the car.
Well said Rodney.

Or another option, have, aside $18,000 if you own an LT1, $30,000 if you own an LT4, in case the worst case.

Not saying that it is wrong to take the risk, not saying one should not take the risk, for we each get to choose, and for any one who does do a major power mod, who knows whether your chances of a downstream problem are 1%, 5% or XXX%???

I do know well one person who currently owns a C7 Z06, who other than a Borla X-pipe, has vowed that he will never do anything to its powertrain. Why? Well, he did have two, sequential oC6 Z06 motors totally 'built" -- both over 700 HP (by different engine builders), both catastrophically blew up, so when he put in his third brand new motor into it (GM would not cover anything on his warranty), he said, "UNCLE!"


Is it not great, that we each get to choose!
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Thanks All! Definitely glad I asked.. The dealership said bolt-on superchargers "should" be okay... I definitely didn't get the warm and fuzzy that it'd be covered.

Appreciate everyone's assistance and guess the best place to start is the actual GM site.

Happy Mother's Day to any moms/grandmas/etc...
ANY significant performance mods, and many minor ones, will let GM void your powertrain warranty. And it doesn't matter WHAT your dealer says. Warranty decisions are made by GM, not the dealer.

Companies like Calloway, and I think Lingenfelter, offer their own warranty coverage for the power train, but that's not the same as GM's warranty. You bring in a supercharged car with powertrain damage, and ask the dealer to repair it under GM's warranty, GM is just going to laugh at you. Period. No question at all. If you want a supercharger, and a warranty, go with one of the companies that provide their own warranty coverage (which costs extra, of course).
Calloway doesn't have a relationship with GM? That is hard to believe. If you can order a corvette with the Calloway option, and the car is subsequently sent from the factory to Calloway, hard to believe Calloway doesn't have a relationship with GM! But what do I know, don't own a Calloway Corvette, but it sure stands to reason, if you can order a Calloway Corvette.....or better yet buy a Calloway Corvette that is sitting in a Chevrolet Showroom, there has to be some connection!
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It is my understanding that Callaway will work with GM's dealership network.

However, on a power train warranty claim on a Callaway Corvette, the dealership's service department is paid by Callaway's warranty department, not GM's warranty department.
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Thanks All! Definitely glad I asked.. The dealership said bolt-on superchargers "should" be okay... I definitely didn't get the warm and fuzzy that it'd be covered.

Appreciate everyone's assistance and guess the best place to start is the actual GM site.

Happy Mother's Day to any moms/grandmas/etc...
Welcome to our forum Cincy! :eek:nthego:
Calloway doesn't have a relationship with GM? That is hard to believe. If you can order a corvette with the Calloway option, and the car is subsequently sent from the factory to Calloway, hard to believe Calloway doesn't have a relationship with GM! But what do I know, don't own a Calloway Corvette, but it sure stands to reason, if you can order a Calloway Corvette.....or better yet buy a Calloway Corvette that is sitting in a Chevrolet Showroom, there has to be some connection!
"Relationship" yes. But that doesn't mean GM will warranty Calloway's work, or any damage your 200 extra horsepower does to the drivetrain. Calloway offers it's own warranty.
Calloway doesn't have a relationship with GM? That is hard to believe. If you can order a corvette with the Calloway option, and the car is subsequently sent from the factory to Calloway, hard to believe Calloway doesn't have a relationship with GM! But what do I know, don't own a Calloway Corvette, but it sure stands to reason, if you can order a Calloway Corvette.....or better yet buy a Calloway Corvette that is sitting in a Chevrolet Showroom, there has to be some connection!
All you need to do is send GM written correspondence or even call them. It is called marketing. Been there done that. Some people do not want to admit it but it is in black and white. Not all GM dealers will even work on the tuner cars because they ARE NOT BEING PAID BY GM or if there are disagreements they are at risk. There is a lot more to all of this but not for this thread.
Calloway doesn't have a relationship with GM? That is hard to believe. If you can order a corvette with the Calloway option, and the car is subsequently sent from the factory to Calloway, hard to believe Calloway doesn't have a relationship with GM! But what do I know, don't own a Calloway Corvette, but it sure stands to reason, if you can order a Calloway Corvette.....or better yet buy a Calloway Corvette that is sitting in a Chevrolet Showroom, there has to be some connection!
Yes, Callaway has a very strong relationship with the GM network, and not just Corvettes, but additionally with other models across the entire GM line. You can walk into any GM dealer that is also an authorized Callaway sales/service dealer, such as Criswell, and "check the box" so to speak, and your ordered vehicle will go from factory, to Callaway, and to the dealer for delivery with full warranty.

It is my understanding that Callaway will work with GM's dealership network.

However, on a power train warranty claim on a Callaway Corvette, the dealership's service department is paid by Callaway's warranty department, not GM's warranty department.
Rodney, that is accurate, although GM will determine if a power train warranty claim is a GM issue, or a Callaway issue, thus determining who foots the bill.

Of note, like the GM warranty, the Callaway warranty can be extended at owner's cost. Without going into specific fine print, here's a generalization of the warranty from my brochure:

Callaway offers the most comprehensive aftermarket warranty in the industry. Overlapping the factory GM warranty, Callaway covers all Callaway components and GM components that are affected by Callaway components. GM dealers do not block factory warranty on Callaway Corvettes; they perform maintenance and warranty repairs with support from Callaway Cars.

In the rare occasion that a Callaway car or truck requires attention by a Chevrolet, GMC or Cadillac dealer to address a warranty-related problem, GM and Callaway work together to return the vehicle to its owner as soon as possible. For 36 months or 36,000 miles from the vehicle in-service date or mileage (whichever comes first) Callaway assists the dealer to conduct a timely diagnosis of the problem. Callaway will then supply any required Callaway replacement parts and technical support, and reimburse the dealer for the dealership’s labor cost. Plus, if failure of a Callaway component should result in damage to covered GM powertrain parts, Callaway will also reimburse the dealer for those parts and labor as well.
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I'm having a Edelbrock Eforce supercharger installed on my 2014 stingray this weekend in California hoping for the best I understand the sky Vette had a issue with his fuel line so we'll see
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Just remember those Edelbrock warranties are from the date of purchase of the car not when you install the SC. So if your 2014 corvette has 35,000 miles on it and you just installed your Edelbrock you have 1000 miles left but you are over 3 years now so no warranty by Edelbrock. Read the fine print.
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